Question

A fisherman notices that his boat is moving up and down
periodically, owing to waves on the surface of the water. It takes
a time of 2.10 s for the boat to travel from its highest point to
its lowest, a total distance of 0.700 m. The fisherman sees that
the wave crests are spaced a horizontal distance of 5.74 m
apart.

(E) What is the displacement of the wave at x = 0.180 , and t =
10.0 ?